A biotech company made history with the birth of three genetically engineered wolves: What we know about these prehistoric ...

This wolf breed is notable for its large size, with adult males weighing approximately 125 pounds. Their thick fur and strong body allow them to live in the frigid climes of their environment.

These massive wolves had to compete with large carnivores like sabertooth cats, bears, and other bone-crushing dogs. However, they worked together and hunted in groups, much like modern wolf packs.

Dire wolves, made famous by “Game of Thrones,” went extinct some 13,000 years ago. Now, researchers have bred gray-wolf pups ...